It's possible to interpret it as being about growing up, but like puzzud, I hear it as being more about the darker side of ambition, which can arise from feelings of inadequacy ("they just remind me of how small I am") but can turn into a kind of insatiable monster. This person wants to be not just tall, but the biggest person in the land, and even then will probably not be satisfied or at peace. The discordant synth sounds in the outro to me suggest something grotesque and unnatural. The imperious commands to "fetch more water, fetch more sand" imply using other people to serve one's own ambition, and overusing resources, which could be a criticism of civilizational and not just individual excesses (although on the other hand, the message of Blind Youth that urbanization is not entirely a bad thing in and of itself sounds sincere to me--- building in order to live collectively is not the problem.)
It's possible to interpret it as being about growing up, but like puzzud, I hear it as being more about the darker side of ambition, which can arise from feelings of inadequacy ("they just remind me of how small I am") but can turn into a kind of insatiable monster. This person wants to be not just tall, but the biggest person in the land, and even then will probably not be satisfied or at peace. The discordant synth sounds in the outro to me suggest something grotesque and unnatural. The imperious commands to "fetch more water, fetch more sand" imply using other people to serve one's own ambition, and overusing resources, which could be a criticism of civilizational and not just individual excesses (although on the other hand, the message of Blind Youth that urbanization is not entirely a bad thing in and of itself sounds sincere to me--- building in order to live collectively is not the problem.)